JPH06228340A - Production of resin-coated sheet and production of prepreg - Google Patents
Production of resin-coated sheet and production of prepregInfo
- Publication number
- JPH06228340A JPH06228340A JP1541493A JP1541493A JPH06228340A JP H06228340 A JPH06228340 A JP H06228340A JP 1541493 A JP1541493 A JP 1541493A JP 1541493 A JP1541493 A JP 1541493A JP H06228340 A JPH06228340 A JP H06228340A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- sheet
- coated
- release paper
- reinforcing fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、樹脂塗布シートの製
造方法に関する。また、この発明は、そのような樹脂塗
布シートを使用してプリプレグを製造する方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a resin coated sheet. The present invention also relates to a method for producing a prepreg using such a resin coated sheet.
【０００２】[0002]
【従来の技術】繊維強化プラスチック（ＦＲＰ）を成形
するのに使用するプリプレグを製造する方法として、補
強繊維シートの少なくとも一面に樹脂塗布シートをその
塗布面が補強繊維シート側になるように重ね合わせ、そ
れら補強繊維シートと樹脂塗布シートとの重ね合せ体を
加熱下に加圧して樹脂塗布シート上の樹脂を補強繊維シ
ートに転移、含浸する方法がある。樹脂塗布シートは、
このようなプリプレグの製造に用いられる。2. Description of the Related Art As a method for producing a prepreg used for molding a fiber reinforced plastic (FRP), a resin coated sheet is laminated on at least one side of a reinforcing fiber sheet so that the coated surface is on the side of the reinforcing fiber sheet. There is a method in which the superposed body of the reinforcing fiber sheet and the resin coated sheet is pressed under heating to transfer and impregnate the resin on the resin coated sheet into the reinforcing fiber sheet. The resin coated sheet is
It is used for manufacturing such a prepreg.
【０００３】ところで、そのような樹脂塗布シートは、
離型紙に、たとえばリバースロールコータを用いて樹脂
を塗布することによって製造しているが、塗布を長時間
続けていると、細い凸状や凹状の筋状痕などの塗布欠陥
を生じやすい。特に、着色剤として顔料を添加した樹脂
を用いるときや、成形体の力学的特性を改善する目的で
フィラーを添加した樹脂を用いるときにこのような現象
が起こりやすい。しかるに、そのような塗布欠陥のある
樹脂塗布シートを用いてプリプレグを製造すると、樹脂
過多な部分や樹脂不足の部分ができて樹脂目付に斑がで
き、表面の平滑性も低下してプリプレグの品位が損われ
る。また、著しい場合には、得られる成形体の力学的物
性の低下を生ずることもある。ＦＲＰの成形材料として
のプリプレグには、樹脂や補強繊維の目付が均一である
こと、ミクロ的には１本１本の補強繊維が樹脂で均一に
覆われていること、表面に適量の樹脂が均一に存在して
いて成形時に適度な接着性を示すことなど、極めて厳し
い条件が要求されているのである。By the way, such a resin coated sheet is
The release paper is manufactured by applying a resin using, for example, a reverse roll coater. However, if the application is continued for a long time, coating defects such as thin convex or concave streak marks are likely to occur. In particular, such a phenomenon is likely to occur when using a resin to which a pigment is added as a colorant or when using a resin to which a filler is added for the purpose of improving the mechanical properties of a molded product. However, when a prepreg is manufactured using such a resin-coated sheet having coating defects, resin-excessive portions and resin-deficient portions are created, resulting in uneven resin basis weight, which reduces surface smoothness and reduces the quality of the prepreg. Is damaged. Further, in a remarkable case, the mechanical properties of the obtained molded product may be deteriorated. The prepreg as a molding material for FRP has a uniform basis weight of resin and reinforcing fibers, microscopically each reinforcing fiber is evenly covered with resin, and a suitable amount of resin on the surface. Extremely strict conditions are required, such as being present uniformly and exhibiting an appropriate adhesiveness during molding.
【０００４】ところで、特公平３−３５６６号公報は、
樹脂を塗布する前に離型紙を加熱することを提案してい
る。この方法は、離型紙を加熱しておくことで塗布時に
おける樹脂の冷却、粘度低下を防ぎ、うねるように表わ
れた大きな塗布欠陥を樹脂の自重によって補正しようと
いうものである。しかしながら、この方法は、うねりの
ような大きな塗布欠陥の補正には有効であっても、細い
凸状や凹状の筋状痕のような小さな塗布欠陥の補正には
有効でない。By the way, Japanese Patent Publication No. 3566/1993 discloses that
It is proposed to heat the release paper before applying the resin. In this method, the release paper is heated to prevent the resin from being cooled and the viscosity from being lowered at the time of coating, and to correct a large coating defect that appears as waviness by the weight of the resin. However, this method is effective for correcting large coating defects such as waviness, but is not effective for correcting small coating defects such as thin convex or concave streak marks.
【０００５】[0005]
【発明が解決しようとする課題】この発明の目的は、従
来の技術における上述した問題点を解決し、樹脂目付の
均一性に優れた樹脂塗布シートを提供するにある。ま
た、この発明の他の目的は、そのような樹脂塗布シート
を用いて高品位のプリプレグを製造する方法を提供する
にある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art and to provide a resin coated sheet excellent in uniformity of resin areal weight. Another object of the present invention is to provide a method for producing a high quality prepreg using such a resin coated sheet.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、離型紙に液状樹脂を塗布した後その塗
布面を樹脂が可塑状態にある間に加圧して平滑化処理す
ることを特徴とする、樹脂塗布シートの製造方法を提供
する。好ましくは、平滑化処理後の樹脂塗布シートを３
０℃以下に冷却する。In order to achieve the above-mentioned object, the present invention is to apply a liquid resin to a release paper and then press the surface to be smoothed while the resin is in a plastic state. A method for producing a resin-coated sheet is provided. Preferably, the smoothed resin-coated sheet is 3
Cool to below 0 ° C.
【０００７】また、この発明は、補強繊維シートに、離
型紙に液状樹脂を塗布した後その塗布面を樹脂が可塑状
態にある間に加圧して平滑化処理してなる樹脂塗布シー
トの樹脂を転移、含浸することを特徴とする、プリプレ
グの製造方法を提供する。補強繊維シートへの樹脂の転
移、含浸は、好ましくは、補強繊維シートの一面に上記
樹脂塗布シートをその塗布面が補強繊維シート側になる
ように重ね合わせ、それら補強繊維シートと樹脂塗布シ
ートとの重ね合せ体を加熱下に加圧することによって行
う。補強繊維シートの両面に樹脂塗布シートを重ね合わ
せてもよい。この場合は、樹脂の転移、含浸後にいずれ
か一方の樹脂塗布シートを構成していた離型紙を剥ぎ取
る。Further, according to the present invention, the resin of the resin coated sheet is obtained by applying liquid resin to the reinforcing fiber sheet and then pressurizing the coated surface while the resin is in the plastic state and smoothing the coated surface. Provided is a method for producing a prepreg, which is characterized by transferring and impregnating. Transfer and impregnation of the resin into the reinforcing fiber sheet is preferably carried out by superposing the resin coating sheet on one surface of the reinforcing fiber sheet such that the coated surface is on the reinforcing fiber sheet side, and the reinforcing fiber sheet and the resin coating sheet. It is carried out by applying pressure to the superposed body under heating. A resin-coated sheet may be laminated on both sides of the reinforcing fiber sheet. In this case, after transfer and impregnation of the resin, the release paper constituting one of the resin coated sheets is peeled off.
【０００８】この発明において用いる離型紙は、クラフ
ト紙などの紙の表面にシリコーン系離型剤を塗布してな
るようなものである。The release paper used in the present invention is such that the surface of paper such as kraft paper is coated with a silicone release agent.
【０００９】また、樹脂としては、通常、エポキシ樹脂
や不飽和ポリエステル樹脂、ビニルエステル樹脂などの
熱硬化性樹脂を用いる。これらの熱硬化性樹脂は、補強
繊維シートへの転移、含浸と同時にＢステージ化され
る。Further, as the resin, a thermosetting resin such as an epoxy resin, an unsaturated polyester resin or a vinyl ester resin is usually used. These thermosetting resins are B-staged simultaneously with the transfer and impregnation into the reinforcing fiber sheet.
【００１０】さらに、補強繊維シートは、ＦＲＰにおい
て樹脂の補強繊維として使われている、炭素繊維やガラ
ス繊維、ポリアラミド繊維などの高強度、高弾性率繊維
のストランドを一方向に互いに並行かつシート状に引き
揃えたものや、そのような補強繊維の織物、マットのよ
うなものである。Further, the reinforcing fiber sheet is a sheet-like structure in which strands of high-strength, high-modulus fibers such as carbon fibers, glass fibers, and polyaramid fibers, which are used as reinforcing fibers for resins in FRP, are parallel to each other in one direction. It is like a woven fabric or mat of such reinforcing fibers.
【００１１】さて、この発明においては、まず離型紙に
液状の樹脂を塗布するが、この塗布は、リバースロール
コータやダイコータを用いる方法、ドクターナイフコー
タを用いる方法など、周知の方法によることができる。In the present invention, the liquid resin is first applied to the release paper, but this application can be carried out by a known method such as a method using a reverse roll coater or a die coater, a method using a doctor knife coater, or the like. .
【００１２】離型紙に樹脂を塗布した後は、加圧ロール
や加圧板などを用いて離型紙ごと塗布面を加圧し、筋状
痕などの塗布欠陥を消失させる。すなわち、平滑化処理
する。このとき加える圧力は、塗布欠陥は消失するが塗
布厚みはほとんど変化しないほどの圧力である。また、
この平滑化処理は、樹脂が可塑状態にある間に行うこと
が必要で、もし必要なら熱板などで前もって加熱した
り、加圧ロールを加熱ロールとして加圧と同時に加熱す
る。この平滑化処理による塗布欠陥の消失によって、樹
脂目付は極めて均一なものとなる。平滑化処理後、樹脂
が過度の熱履歴を受けるのを防ぐため、冷却板などを用
いて３０℃以下に冷却するのも好ましいことである。After the resin is applied to the release paper, the application surface is pressed together with the release paper using a pressure roll, a pressure plate, etc. to eliminate coating defects such as streak marks. That is, smoothing processing is performed. The pressure applied at this time is such that the coating defects disappear but the coating thickness hardly changes. Also,
This smoothing treatment needs to be performed while the resin is in a plastic state, and if necessary, it is heated in advance with a hot plate or the like, or a pressure roll is used as a heating roll to heat at the same time as pressure is applied. Due to the disappearance of coating defects due to this smoothing treatment, the resin areal weight becomes extremely uniform. After the smoothing treatment, it is also preferable to cool the resin to 30 ° C. or lower using a cooling plate or the like in order to prevent the resin from receiving an excessive heat history.
【００１３】上述した樹脂塗布シートを用いるプリプレ
グの製造は、補強繊維シートにその樹脂塗布シートの樹
脂を転移、含浸することによって行うが、好ましくは、
補強繊維シートの一面に樹脂塗布シートをその塗布面が
補強繊維シート側を向くように重ね合わせ、それら補強
繊維シートと樹脂塗布シートとの重ね合せ体を加熱下に
加圧して転移、含浸する。加熱、加圧には、加熱した加
圧ロールを用いることができる。加熱温度は、樹脂の種
類などにもよるが、５０〜１８０℃程度の範囲で選定す
る。加圧力は、線圧にして２００〜２，０００kgf ／cm
程度の範囲でよい。なお、転移、含浸時に樹脂が加圧ロ
ールに付着しないよう、補強繊維シートの他面に離型紙
を重ね合わせるのが好ましい。樹脂の転移、含浸によっ
て得られるプリプレグは、通常、離型紙とともにロール
状に巻き取る。補強繊維シートの両面に樹脂塗布シート
を重ね合わせてもよく、この場合は、いずれか一方の樹
脂塗布シートを構成していた離型紙を剥ぎ取ってから巻
き取るようにする。The prepreg using the above-mentioned resin-coated sheet is produced by transferring and impregnating the reinforcing fiber sheet with the resin of the resin-coated sheet, but preferably,
A resin-coated sheet is superposed on one surface of the reinforcing fiber sheet so that the coated surface faces the reinforcing fiber sheet side, and the superposed body of the reinforcing fiber sheet and the resin-coated sheet is transferred under heat to be transferred and impregnated. A heated pressure roll can be used for heating and pressing. The heating temperature is selected in the range of about 50 to 180 ° C., though it depends on the type of resin. The applied pressure is a linear pressure of 200-2,000kgf / cm.
It may be in a range of degrees. Note that it is preferable to overlay a release paper on the other surface of the reinforcing fiber sheet so that the resin does not adhere to the pressure roll during transfer and impregnation. A prepreg obtained by transferring and impregnating a resin is usually wound into a roll with release paper. A resin-coated sheet may be superposed on both sides of the reinforcing fiber sheet. In this case, the release paper constituting one of the resin-coated sheets is peeled off and then wound up.
【００１４】[0014]
【実施例】幅１，１００mmの離型紙に、硬化剤を含む８
０℃の液状エポキシ樹脂を、リバースロールコータを用
いて、目付が４５ｇ／ｍ2 になるように、かつ、塗布幅
が１，０００mmになるように連続的に塗布した。EXAMPLE A release paper having a width of 1,100 mm contains a curing agent 8
A liquid epoxy resin at 0 ° C. was continuously applied using a reverse roll coater so that the basis weight was 45 g / m 2 and the coating width was 1,000 mm.
【００１５】塗布開始後、１００ｍ2 塗布しても筋状痕
などの塗布欠陥は発生しなかった。しかしながら、７，
５００ｍ2 塗布した時には、幅０．２〜０．３mmの凹状
筋状痕が１１本、幅０．４〜０．５mmの凹状筋状痕が３
本発生した。さらに、１５，０００ｍ2 塗布時において
は、幅０．２〜０．３mmの筋状痕が２１本、幅０．４〜
０．５mmの筋状痕が７本に増えた。After the start of coating, coating defects such as streak marks did not occur even when 100 m 2 was coated. However, 7,
When 500 m 2 is applied, 11 concave streak marks with a width of 0.2 to 0.3 mm and 3 concave streak marks with a width of 0.4 to 0.5 mm are applied.
This occurred. Furthermore, at the time of application of 15,000 m 2 , 21 streak marks having a width of 0.2 to 0.3 mm and a width of 0.4 to
The number of 0.5 mm streak marks increased to 7.
【００１６】そこで、図１に示すように、１５，０００
ｍ2 塗布時点における樹脂塗布シート１の塗布面２をロ
ール３、４からなる加熱、加圧ロール用いて離型紙５ご
と加圧し、平滑化処理したところ、筋状痕はすべて消失
した。このとき、塗布面２の樹脂がロール３に付着しな
いよう、ロール３と塗布面２との間に離型紙６を介在さ
せた。また、塗布面の温度は４０℃、樹脂の粘度は２
０，０００ポイズであり、加圧力は線圧で０．５kgf ／
cmとした。Therefore, as shown in FIG.
When the application surface 2 of the resin application sheet 1 at the time of application of m 2 was pressed together with the release paper 5 using the heating and pressurizing rolls composed of the rolls 3 and 4, and the smoothing treatment was performed, all streak marks disappeared. At this time, a release paper 6 was interposed between the roll 3 and the coating surface 2 so that the resin on the coating surface 2 did not adhere to the roll 3. The temperature of the coated surface is 40 ° C and the viscosity of the resin is 2
The pressure is 50,000 poise and the linear pressure is 0.5 kgf /
cm.
【００１７】次に、平滑化処理後の樹脂塗布シートを用
い、図２に示すように、炭素繊維のストランドを互いに
並行かつシート状に引き揃えてなる補強繊維シート７
に、その下側から樹脂塗布シート８を、また、上側から
別の樹脂塗布シート９をそれぞれ塗布面が補強繊維シー
ト７側になるように重ね合わせ、それら補強繊維シート
７と樹脂塗布シート８、９との重ね合せ体をロール１
０、１１からなる加熱、加圧ロールを用いて１００℃の
加熱下に線圧６００kgf ／cmで加圧して樹脂塗布シート
８、９上の樹脂を補強繊維シート７に転移、含浸した
後、上側の樹脂塗布シート９を構成していた離型紙１２
を剥ぎ取り、得られたプリプレグを下側の樹脂塗布シー
ト８を構成していた離型紙ごと紙管１３に巻き取った。
得られたプリプレグは、目付が２３８ｇ／ｍ2 で、炭素
繊維を６３体積％含むものであった。Next, using the smoothed resin-coated sheet, as shown in FIG. 2, a reinforcing fiber sheet 7 in which carbon fiber strands are aligned in parallel and in a sheet shape.
The resin coating sheet 8 from the lower side and another resin coating sheet 9 from the upper side so that the coating surfaces are on the reinforcing fiber sheet 7 side, respectively, and the reinforcing fiber sheet 7 and the resin coating sheet 8, Roll 1 with a stack of 9
The resin on the resin-coated sheets 8 and 9 is transferred to and impregnated into the reinforcing fiber sheet 7 by applying a linear pressure of 600 kgf / cm under heating at 100 ° C. using a heating and pressure roll consisting of 0 and 11, and then the upper side. Release paper 12 constituting the resin coating sheet 9 of
The prepreg thus obtained was peeled off and wound around the paper tube 13 together with the release paper constituting the resin coating sheet 8 on the lower side.
The obtained prepreg had a basis weight of 238 g / m 2 and contained 63% by volume of carbon fiber.
【００１８】上記プリプレグの表面を、目視によって評
価したが、樹脂の目付斑に起因する色相の斑は認められ
ず、また、手触りによる評価でも、表面は極めて平滑で
あった。The surface of the prepreg was visually evaluated, but no unevenness in hue due to the uneven weight of the resin was observed, and the surface was extremely smooth by the touch.
【００１９】[0019]
【比較例】実施例における平滑化処理前の樹脂塗布シー
トを用い、実施例と同様にしてプリプレグを得た。Comparative Example A prepreg was obtained in the same manner as in the example, using the resin-coated sheet before the smoothing process in the example.
【００２０】得られたプリプレグの表面を実施例と同様
に目視によって評価したところ、筋状痕と樹脂の目付斑
に起因する５本の色相斑が認められた。また、手触りに
よる評価でも、炭素繊維によるわずかな凹凸が認められ
た。When the surface of the prepreg thus obtained was visually evaluated in the same manner as in the examples, 5 color spots due to streak marks and resin spots were found. In addition, slight unevenness due to the carbon fibers was recognized in the evaluation by touch.
【００２１】[0021]
【発明の効果】この発明は、離型紙に液状樹脂を塗布し
た後その塗布面を樹脂が可塑状態にある間に加圧して平
滑化処理するので、筋状痕などの塗布欠陥がほとんどな
い、樹脂目付の均一性に優れた樹脂塗布シートを得るこ
とができる。According to the present invention, the liquid resin is applied to the release paper and then the applied surface is pressed while the resin is in the plastic state to be smoothed, so that there are almost no coating defects such as streak marks. It is possible to obtain a resin-coated sheet having excellent uniformity of resin areal weight.
【００２２】また、この発明は、そのような樹脂塗布シ
ートの樹脂を補強繊維シートに転移、含浸するので、実
施例と比較例との対比からも明らかなように、樹脂目付
の均一性に優れ、表面平滑性に優れたプリプレグを製造
することができる。Further, according to the present invention, since the resin of such a resin-coated sheet is transferred and impregnated into the reinforcing fiber sheet, as is clear from the comparison between the example and the comparative example, the uniformity of the resin areal weight is excellent. A prepreg having excellent surface smoothness can be manufactured.
【図１】樹脂塗布シートの塗布面を平滑化処理している
様子を示す図である。FIG. 1 is a diagram showing a state in which a coating surface of a resin coating sheet is smoothed.
【図２】この発明の樹脂塗布シートを用いてプリプレグ
を製造している様子を示す図である。FIG. 2 is a view showing a state in which a prepreg is manufactured using the resin coated sheet of the present invention.
【符号の説明】 １：樹脂塗布シート ２：塗布面 ３：ロール ４：ロール ５：離型紙 ６：離型紙 ７：補強繊維シート ８：樹脂塗布シート ９：樹脂塗布シート １０：ロール １１：ロール １２：離型紙 １３：紙管[Explanation of Codes] 1: Resin coated sheet 2: Coating surface 3: Roll 4: Roll 5: Release paper 6: Release paper 7: Reinforcing fiber sheet 8: Resin coated sheet 9: Resin coated sheet 10: Roll 11: Roll 12 : Release paper 13: Paper core
Claims (6)
を樹脂が可塑状態にある間に加圧して平滑化処理するこ
とを特徴とする、樹脂塗布シートの製造方法。1. A method for producing a resin-coated sheet, which comprises applying a liquid resin to a release paper and then pressurizing the coated surface while the resin is in a plastic state to smooth the resin.
下に冷却することを特徴とする、請求項１の樹脂塗布シ
ートの製造方法。2. The method for producing a resin-coated sheet according to claim 1, wherein the resin-coated sheet after the smoothing treatment is cooled to 30 ° C. or lower.
布した後その塗布面を樹脂が可塑状態にある間に加圧し
て平滑化処理してなる樹脂塗布シートの樹脂を転移、含
浸することを特徴とする、プリプレグの製造方法。3. A resin coated sheet obtained by applying liquid resin to a reinforcing fiber sheet and applying pressure to the coated surface while the resin is in a plastic state and then smoothing the resin. A method of manufacturing a prepreg, which is characterized in that
脂を塗布した後その塗布面を樹脂が可塑状態にある間に
加圧して平滑化処理してなる樹脂塗布シートをその塗布
面が補強繊維シート側になるように重ね合わせ、それら
補強繊維シートと樹脂塗布シートとの重ね合せ体を加熱
下に加圧して樹脂塗布シート上の樹脂を補強繊維シート
に転移、含浸することを特徴とする、プリプレグの製造
方法。4. A resin-coated sheet obtained by applying a liquid resin to a release paper on one surface of a reinforcing fiber sheet and then pressurizing and smoothing the coated surface while the resin is in a plastic state. It is characterized in that the reinforcing fiber sheet is superposed so as to be on the side, and the superposed body of the reinforcing fiber sheet and the resin coating sheet is pressed under heating to transfer and impregnate the resin on the resin coating sheet into the reinforcing fiber sheet. A method of manufacturing a prepreg.
脂を塗布した後その塗布面を樹脂が可塑状態にある間に
加圧して平滑化処理してなる樹脂塗布シートをその塗布
面が補強繊維シート側になるように重ね合わせ、それら
補強繊維シートと樹脂塗布シートとの重ね合せ体を加熱
下に加圧して樹脂塗布シート上の樹脂を補強繊維シート
に転移、含浸した後、いずれか一方の樹脂塗布シートを
構成していた離型紙を剥ぎ取ることを特徴とする、プリ
プレグの製造方法。5. A resin-coated sheet obtained by applying a liquid resin to a release paper on both sides of a reinforcing fiber sheet and then applying pressure to the surface to smooth the resin while the resin is in a plastic state. After stacking them so that they are on the side of the reinforcing fiber sheet and pressing the stacked body of the reinforcing fiber sheet and the resin-coated sheet under heating to transfer and impregnate the resin on the resin-coated sheet into the reinforcing fiber sheet, either A method for producing a prepreg, which comprises peeling off the release paper that constitutes one of the resin-coated sheets.
塗布シートを用いることを特徴とする、請求項３、４ま
たは５のプリプレグの製造方法。6. The method for producing a prepreg according to claim 3, wherein the resin-coated sheet cooled to 30 ° C. or lower after the smoothing treatment is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1541493A JPH06228340A (en) | 1993-02-02 | 1993-02-02 | Production of resin-coated sheet and production of prepreg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1541493A JPH06228340A (en) | 1993-02-02 | 1993-02-02 | Production of resin-coated sheet and production of prepreg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06228340A true JPH06228340A (en) | 1994-08-16 |
Family
ID=11888096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1541493A Pending JPH06228340A (en) | 1993-02-02 | 1993-02-02 | Production of resin-coated sheet and production of prepreg |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06228340A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001525749A (en) * | 1997-05-21 | 2001-12-11 | ベイラー・ベヘール・ベスローテン・フェンノートシャップ | Method of manufacturing transverse web |
| JP2012184929A (en) * | 2011-03-03 | 2012-09-27 | Toray Ind Inc | Prepreg defect inspection method, inspection system, and prepreg manufacturing method |
| WO2013061682A1 (en) * | 2011-10-28 | 2013-05-02 | 東レ株式会社 | Prepreg production method |
| CN113777024A (en) * | 2021-11-11 | 2021-12-10 | 北京玻钢院复合材料有限公司 | Evaluation device and evaluation method for evaluating quality consistency of composite material tape winding prepreg |
-
1993
- 1993-02-02 JP JP1541493A patent/JPH06228340A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001525749A (en) * | 1997-05-21 | 2001-12-11 | ベイラー・ベヘール・ベスローテン・フェンノートシャップ | Method of manufacturing transverse web |
| JP2012184929A (en) * | 2011-03-03 | 2012-09-27 | Toray Ind Inc | Prepreg defect inspection method, inspection system, and prepreg manufacturing method |
| WO2013061682A1 (en) * | 2011-10-28 | 2013-05-02 | 東レ株式会社 | Prepreg production method |
| US9180653B2 (en) | 2011-10-28 | 2015-11-10 | Toray Industries, Inc. | Prepreg production method |
| CN113777024A (en) * | 2021-11-11 | 2021-12-10 | 北京玻钢院复合材料有限公司 | Evaluation device and evaluation method for evaluating quality consistency of composite material tape winding prepreg |
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